body {
	overflow: hidden;
	& > .stage {
		height: 96vh;
		background-color: #007cbf;
		width: 100%;
	}

	& > menu {
		width: 100%;
		height: 4vh;
		line-height: 4vh;
		box-sizing: border-box;
		position: fixed;
		bottom: 0;
		left: 0;
		margin: 0;
		border-top: 1px solid white;
		background-image: linear-gradient(93deg, #d1ede9, #c1e9e3 3%, #b1e4dc 12%, #6ea0ce 90%, #2a5cbf);
		padding: 0;
		& > .button {
			margin-top: 5px;
			margin-left: 10px;
			cursor: pointer;
			width: 80px;
			height: 15px;
			font-size: 14px;
			line-height: 15px;
			padding: 5px 10px 3px;
			border-radius: 16px;
			border: 2px solid #ccc;
			position: relative;
			color: #fff;
			text-shadow: rgba(10, 10, 10, 0.5) 1px 2px 2px;
			text-align: center;
			vertical-align: middle;
			white-space: nowrap;
			text-overflow: ellipsis;
			overflow: hidden;
			background-color: rgba(60, 132, 198, 0.8);
			border-top-color: #8ba2c1;
			border-right-color: #5890bf;
			border-bottom-color: #4f93ca;
			border-left-color: #768fa5;
			box-shadow: rgba(66, 140, 240, 0.5) 0px 10px 16px;
			background-image: -webkit-gradient(linear, 0% 0%, 0% 90%, from(rgba(28, 91, 155, 0.8)), to(rgba(108, 191, 255, .9)));
			.glare {
				position: absolute;
				top: 0;
				left: 5px;
				-webkit-border-radius: 8px;
				-moz-border-radius: 8px;
				height: 1px;
				width: 90%;
				padding: 8px 0;
				background-color: rgba(255, 255, 255, 0.25);
				background-image: -webkit-gradient(linear, 0% 0%, 0% 95%, from(rgba(255, 255, 255, 0.7)), to(rgba(255, 255, 255, 0)));
			}
		}
	}
}

.window {
	width: 500px;
	height: 400px;
	background-color: #c3d8ed;
	position: fixed;
	padding: 1%;
	top: 10%;
	left: 10%;
	border-radius: 1%;
	border: 1px solid gray;
	border-top-color: white;
	box-shadow: 2px 2px 2px rgba(0, 0, 0, .3);
	    box-sizing: border-box;
	& > header {
		background-image: line-gradient(to left, red, white);
		h1 {
			font-size: 1rem;
		}

		& > div {
			float: right;
			div {
				width: 15px;
				height: 10px;
				border: 1px solid gray;
				border-radius: 3px;
				padding: 5px;
				text-align: center;
				cursor: pointer;
				color: white;
				margin-left: 10px;
				font-size: 23px;
				line-height: 10px;
				float: left;
				background-image: -webkit-gradient(linear, 0% 0%, 0% 90%, from(rgba(220, 228, 236, 0.8)), to(rgba(185, 225, 255, 0.9)));
				text-shadow: 0 1px black, 1px 0 black, -1px 0 black, 0 -1px black;
				&.max {
					font-size: 14px;
				}
			}
		}
	}

	& > div {
		background-color: white;
		height: 96%;
		border: 1px solid #666;
		iframe {
			border: 0;
			width: 100%;
			height: 100%;
		}
	}
}

.mask {
	position: fixed;
	background-color: rgba(255, 255, 255, .5);
	border: 1px solid blue;
}

